1 Tbit/s three-carrier dual polarization 16-QAM superchannel transmission over 1500 km using modified fixed look-up table based MAP detection

Rezania, A.; Gao, Ying; Cartledge, J.C.

doi:10.1109/ecoc.2014.6964189

Cited by 1 publication

(2 citation statements)

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“…To provide a consistent comparison of the system configurations and algorithms, relative to [26] and [27] the experimental setup has been further optimized and new data captured for all the results. The fixed LUTs for the single-carrier and three-carrier signals were created using training sequence data sets comprised of 564,645 symbols in a back-to-back system configuration operating at the highest available OSNR (36.6 dB and 36.9 dB, respectively).…”

Section: A Lut Entriesmentioning

confidence: 99%

“…In particular, due to the limitations of high-speed linear amplifiers and optical modulators, modulated signals can exhibit a pattern-dependent distortion or non-linear inter-symbol interference with memory [25]. Recently, we presented the transmission performance of a 448 Gb/s single-carrier DP 16-QAM electrical time-division multiplexing (ETDM) signal using a fixed look-up table (LUT) based on maximum-aposteriori (MAP) detection with a conventional decision rule [26] and 1.206 Tb/s three-carrier DP 16-QAM superchannel ETDM signal using fixed LUT-MAP detection with a modified decision rule (referred to as minimum distance below) [27]. DP 16-QAM exhibits a high spectral efficiency and an optical signal-to-noise ratio (OSNR) sensitivity that enables longhaul transmission.…”

Section: Introductionmentioning

confidence: 99%

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Transmission Performance of 448 Gb/s Single-Carrier and 1.2 Tb/s Three-Carrier Superchannel Using Dual-Polarization 16-QAM With Fixed LUT Based MAP Detection

Rezania

Cartledge

2015

J. Lightwave Technol.

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Transmission of single-carrier 448 Gb/s dualpolarization 16-ary quadrature-amplitude-modulation (DP 16-QAM) electrical time-division multiplexing (ETDM) signal and a 1.206 Tb/s three-carrier superchannel ETDM signal using DP 16-QAM is demonstrated by applying a fixed look-up table (LUT) based on maximum-a-posteriori (MAP) detection. The MAP detector is used to mitigate the effect of pattern dependent distortion in the transmitted signal arising from the high symbol rates. Different decision rules for the MAP detector are considered based on multiple observations of the same symbol as the detection window advances through the received symbol sequence. The back-to-back optical signal-to-noise ratios for a bit error ratio of 10 −3 are 26.9 dB and 26.4 dB for the 448 Gb/s signal (12% overhead with 7% for forward error correction (FEC) coding overhead) and 1.206 Tb/s superchannel signal (20% overhead with 15% for FEC coding overhead), respectively. Compared to conventional MAP detection, a 7-symbol minimum distance MAP detector reduces the required OSNR by about 0.8 dB and 1 dB at the FEC thresholds of 3.8 × 10 −3 and 1.9 × 10 −2 for the 448 Gb/s signal and 1.206 Tb/s superchannel signal, respectively. Transmission over 1200 and 1500 km of standard single-mode fiber with EDFA amplification is achieved for the 448 Gb/s signal and 1.206 Tb/s superchannel signal, respectively.Index Terms-Quadrature amplitude modulation, maximuma-posteriori detection, superchannel 0733-8724 (c)

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Section: A Lut Entriesmentioning

confidence: 99%